Optimization of biosurfactant production by Streptomyces isolated from Egyptian arid soil using Plackett–Burman design

Korayem, Abdallah; Abdel-Hafez, A.M.; Zaki, M.M.; Saleh, Eman M.

doi:10.1016/j.aoas.2015.09.001

Cited by 48 publications

(28 citation statements)

References 14 publications

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“…isolated from Egyptian arid soil. The most significant factors evaluated were starch nitrate medium, molasses, peptone, Tween 80, incubation period, and inoculum size, increasing emulsion by 13.5% [43].…”

Section: Plackett-burmanmentioning

confidence: 99%

Statistical Design, a Powerful Tool for Optimizing Biosurfactant Production: A Review

Bertrand

Martínez‐Morales

Rosas-Galván

et al. 2018

Colloids and Interfaces

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Biosurfactants (Bs) have been studied for decades and applied in different industrial sectors because of their competitive biochemical characteristics, and the fact that they are environmentally friendly. Current scientific investigations mainly involve the search for novel Bs producing organisms with attractive characteristics. Bs are expected to replace synthetic surfactants in the near future, but low production yields and inefficient downstream processes have prevented their widespread use. Although there are numerous reports on Bs optimization, to date there has been no critical compilation or revision of the statistical designs and strategies employed for improved production. The purpose of this mini review is to briefly discuss the factors that affect Bs production and the importance of statistical design as an essential tool for increasing production.

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Section: Plackett-burmanmentioning

confidence: 99%

Statistical Design, a Powerful Tool for Optimizing Biosurfactant Production: A Review

Bertrand

Martínez‐Morales

Rosas-Galván

et al. 2018

Colloids and Interfaces

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“…Parafilm test and surface tension determination are both physical methods widely applied for identification of biosurfactant-producing microorganisms (Sari et al, 2014;Korayem et al, 2015). The results from parafilm M assay showed that Rhizopus strains tested in this work were able to produce biosurfactants with different surface-active properties, since the droplet diameter of the metabolic liquid of each strain was larger, compared with fresh culture medium (Table 1).…”

Section: Detection Of Biosurfactant-producing Rhizopus Strainsmentioning

confidence: 78%

Development and improved selected markers to biosurfactant and bioemulsifier production by Rhizopus strains isolated from Caatinga soil

Pele¹,

Rodríguez²,

Ribeaux³

et al. 2018

Afr. J. Biotechnol.

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This study screened four Rhizopus species as biosurfactant producers using different markers. First of all, Rhizopus spp. UCP 1607 was identified as Rhizopus arrhizus by morphological and molecular methods. The production of biosurfactant/bioemulsifier was investigated by submerged fermentation using soybean post-frying oil (5% v/v) and sodium glutamate (1% w/v) medium. The primary markers' hemolysis and parafilm M tests showed that R. arrhizus UCP1607 strain exhibited higher hemolytic activity (49 mm of clear zone) on sheep blood agar and a larger drop diameter (12 mm) on parafilm hydrophobic surface. The experimental results showed the most promising biosurfactant production by R. arrhizus UCP 1607 strain led to a reduction of surface tension (31.8 mN/m) and the diameter of the oil-spreading covered an area of 66.4 cm 2 . The strains Rhizopus microsporus var. chinensis UCP1296, R. microsporus var. microsporus UCP1304, and R. arrhizus UCP1607 were capable of forming stable emulsions corresponding to 91.7, 94.8, and 82.6%, respectively in crude oil.

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“…Biosurfactants are among the most important and valuable products of biotechnology for industrial and medical applications and can be produced by a variety of micro-organisms including yeasts, filamentous fungi and bacteria (Donio et al 2013;Gudiña et al 2013;Korayem et al 2015;Rienzo et al 2016). The main therapeutic and biomedical use of biosurfactants are related to antibacterial and antifungal properties, inhibition of fibrin clot formation, anti-adhesive action against several pathogenic micro-organisms, etc.…”

Section: Introductionmentioning

confidence: 99%

“…In this sense, the search for promising biosurfactant-producing micro-organisms, development of new and optimized fermentation and recovery processes, and the use of cheap raw materials (e.g. agro-industry wastes as carbon sources) will allow the availability of inexpensive biosurfactants for important applications (Chaprão et al 2015;Korayem et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Biosurfactant production by yeasts from different types of soil of the South Shetland Islands (Maritime Antarctica)

et al. 2019

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Aim To screen and identify a potential biosurfactant‐producing yeast strain isolated from Antarctic soil and to evaluate the fermentation process kinetics of the most promising strain on biosurfactant production using glycerol as carbon source. Methods and Results From the 68 isolated yeast strains, 11 strains were able to produce biosurfactants after Emulsification Index (E.I.) and Drop Collapse tests, reaching an E.I. higher than 10%. Strain 1_4.0 was the best producer, identified as Candida glaebosa based on molecular analysis. Yeast was cultivated in a medium composed of glycerol supplemented with yeast extract for 120 h to determine the process kinetics. The increased C/N ratio affected yeast growth and biosurfactant production. Biosurfactant release was associated with the end of exponential and beginning of the stationary growth phases. Results indicated an E.I. of 30% at the end of the fermentation. Conclusions The feasiability of C. glaebosa to produce biosurfactant from a low‐cost medium cultivation shows a great impact on the development of bioresource in the Antarctica terrestrial environment. Significance and Impact of the Study Although the diversity of psychrophilic/psychrotolerant micro‐organisms from Antarctica has been the preferred subject of study by microbiologists, terrestrial microfungal communities are scarcely investigated and literature about the biotechnological potential of such micro‐organisms should cover important biomolecules in addition to cold‐adapted enzymes. In the present study, for the first time, the Maritime Antarctica environment was screened as a novel source of biosurfactants produced by micro‐organisms.

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Optimization of biosurfactant production by Streptomyces isolated from Egyptian arid soil using Plackett–Burman design

Cited by 48 publications

References 14 publications

Statistical Design, a Powerful Tool for Optimizing Biosurfactant Production: A Review

Statistical Design, a Powerful Tool for Optimizing Biosurfactant Production: A Review

Development and improved selected markers to biosurfactant and bioemulsifier production by Rhizopus strains isolated from Caatinga soil

Biosurfactant production by yeasts from different types of soil of the South Shetland Islands (Maritime Antarctica)

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